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Movies like Navigatorul solitar (1982)

Short film in the Delta Space Mission film series. Dan, Yashiro and Anuta board an alien ship and are taken prisoner by Borak, a giant armored conquistador. The three fail to understand him and, suspecting that Borak wants to obtain their ship's fuel to power their power generators, attack and annihilate him. A small, green alien then emerges from the giant armor and speaks to them in a variant of Esperanto.